Single backer board support for siding



FIG. 1 is a top perspective view illustrating a single backer board support for siding showing our new design;

FIG. 2 is a right-end view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof; and

FIG. 5 is a bottom view thereof. 

The ornamental design for a single backer board support for siding, as shown. 